期刊
JOURNAL OF MAMMARY GLAND BIOLOGY AND NEOPLASIA
卷 10, 期 3, 页码 221-229出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10911-005-9583-7
关键词
oxytocin; oxytocin receptor; breast; myoepithelial cells; lipid rafts; signaling
Oxytocin (OT) plays a crucial role as a mediator of breast myoepithellal cell contraction, the process responsible for the ejection of milk during lactation, and is also involved: in myoepithelial cell proliferation and postpartum mammary gland proliferation. Furthermore, although a number of breast cancer cells have oxytocin receptors (OTRs), it has been reported that OT stimulates, inhibits, or has no effect on cell proliferation. As these different effects seem to be mediated by different signaling pathways elicited by OTR stimulation, we here review the regulation of OTR signaling in different cell systems and discuss how understanding the molecular basis of receptor coupling specificity has become extremely important for understanding the role played by OTRs in regulating cell growth.
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